| article html file updated | 8 February 2020 06:58 CET | Update | https://www.mdpi.com/2073-4360/9/6/197 |
| article html file updated | 25 September 2019 01:40 CEST | Update | - |
| article html file updated | 3 May 2019 19:56 CEST | Update | - |
| article html file updated | 18 March 2019 05:51 CET | Update | - |
| article html file updated | 28 June 2017 14:18 CEST | Update | - |
| article html file updated | 31 May 2017 11:08 CEST | Original file | - |
| article xml uploaded. | 31 May 2017 11:06 CEST | Update | https://www.mdpi.com/2073-4360/9/6/197/xml |
| article pdf uploaded. | 31 May 2017 11:06 CEST | Updated version of record | https://www.mdpi.com/2073-4360/9/6/197/pdf |
| article pdf uploaded. | 29 May 2017 10:14 CEST | Version of Record | https://www.mdpi.com/2073-4360/9/6/197/pdf-vor |
